If like to see a demo page to analyze the behavior as the misalignment can depend on multiple factors.
Normalize top will normalize elements which are contained in an element at the top of the page but which is smaller than the page height, which would cause it to have a scroll progress at all times instead of starting at the center of the container.
Do your elements have the same weight and height? Are they initially aligned? Have you tried using the fixed values from-to parallax option?